Machines



(No Model) D. GAULD. EEEE MECHANISM FOR SEWING MACHINES.

Patented Julie 29,1897.

UNITED STATES PATENT OFFICE.

DANIEL GAIILD, OF ROCKFORD, ILLINOIS, ASSIGNOR TO THE ILLINOIS SEWINGMACHINE COMPANY, OF SAME PLACE.

FEED MECHANISM FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 585,201, dated Tune 29,1897.

Application filed May 8, 1896. Serial No. 590,713. (No model.)

To aZZ whmn it may concern:

Be it known thatvI, DANIEL GAULD, a citizen of the UnitedStates,residing at Rockford, in the county of Winnebago and State ofIllinois, have invented certain new and useful Improvements in FeedMechanism for Sewing-Machines,of which the following is a specification.

The object of this invention is to construct the mechanism for impartingthe feeding movement to sewing-machines with buffers, which will to agreat extent remove the noise in their operation; and it consists ofbufiers placed within the cam-slot, against which the pin extending fromthe feed-bar comes in contact at the end of each reciprocation.

In the accompanying drawings, Figure 1 is an isometrical representationof my improvements. Fig. 2 is an isometrical representation of thecam-slot from which the face-plate has been removed. Fig. 3 is anisometrical representation of the cam-slot from which the face-plate andbuffers have been removed. Fig. 4c is an isometrical representation'ofone of the buffers.

To the end of the rock-shaft 1 is secured an arm 2, provided with acam-slot 3, which receives a pin 4, extending from the feed-bar 5. Theends 6 of the cam-slot 3' are enlarged,

leaving a bottom 7, as shown at Fig. 3,within tion 9 of their face cutaway of the same diameter as the main portion of the cam-slot, whichforms the ends of the slot. After these buffer-pieces have been placedin position, as shown at Fig. 2, a face-plate 10, which surrounds therock-shaft, is held in place by a screw 11, as shown at Fig. 1, and isprovided with a slot 12, through which the pin 4 projects, so as not tointerfere with its proper movement. At each oscillation of the rockshaft1 one of the buffers will be brought in contact with the pin 4, and ifit were not for these buffers the pin would come in contact with themetal, producing a noise which the buffers overcome. By this arrangementthe buffer-piece can be easily stamped out of leather or other suitablematerial.

I claim as my invention-- In a sewing-machine, a feed mechanismcomprising a rock-shaft, a head supported thereby having a centralopening, the ends of the opening being enlarged and having its bottomcontracted, buffer-blocks of yielding material placed within theenlarged ends hav ing their inner faces cut away in semicircular form,and a face-plate placed over the blocks holding them in position.

DANIEL GAULD.

Witnesses:

A. O. BEHEL, E. BEHEL.

